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/*
* QTest testcase for TPM CRB talking to external swtpm and swtpm migration
*
* Copyright (c) 2018 IBM Corporation
* with parts borrowed from migration-test.c that is:
* Copyright (c) 2016-2018 Red Hat, Inc. and/or its affiliates
*
* Authors:
* Stefan Berger <stefanb@linux.vnet.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include <glib/gstdio.h>
#include "hw/acpi/tpm.h"
#include "io/channel-socket.h"
#include "libqtest.h"
#include "tpm-util.h"
#include "sysemu/tpm.h"
#include "qapi/qmp/qdict.h"
typedef struct TestState {
char *src_tpm_path;
char *dst_tpm_path;
char *uri;
} TestState;
bool got_stop;
static void migrate(QTestState *who, const char *uri)
{
QDict *rsp;
gchar *cmd;
cmd = g_strdup_printf("{ 'execute': 'migrate',"
"'arguments': { 'uri': '%s' } }",
uri);
rsp = qtest_qmp(who, cmd);
g_free(cmd);
g_assert(qdict_haskey(rsp, "return"));
qobject_unref(rsp);
}
/*
* Events can get in the way of responses we are actually waiting for.
*/
static QDict *wait_command(QTestState *who, const char *command)
{
const char *event_string;
QDict *response;
response = qtest_qmp(who, command);
while (qdict_haskey(response, "event")) {
/* OK, it was an event */
event_string = qdict_get_str(response, "event");
if (!strcmp(event_string, "STOP")) {
got_stop = true;
}
qobject_unref(response);
response = qtest_qmp_receive(who);
}
return response;
}
static void wait_for_migration_complete(QTestState *who)
{
while (true) {
QDict *rsp, *rsp_return;
bool completed;
const char *status;
rsp = wait_command(who, "{ 'execute': 'query-migrate' }");
rsp_return = qdict_get_qdict(rsp, "return");
status = qdict_get_str(rsp_return, "status");
completed = strcmp(status, "completed") == 0;
g_assert_cmpstr(status, !=, "failed");
qobject_unref(rsp);
if (completed) {
return;
}
usleep(1000);
}
}
static void migration_start_qemu(QTestState **src_qemu, QTestState **dst_qemu,
SocketAddress *src_tpm_addr,
SocketAddress *dst_tpm_addr,
const char *miguri)
{
char *src_qemu_args, *dst_qemu_args;
src_qemu_args = g_strdup_printf(
"-chardev socket,id=chr,path=%s "
"-tpmdev emulator,id=dev,chardev=chr "
"-device tpm-crb,tpmdev=dev ",
src_tpm_addr->u.q_unix.path);
*src_qemu = qtest_init(src_qemu_args);
dst_qemu_args = g_strdup_printf(
"-chardev socket,id=chr,path=%s "
"-tpmdev emulator,id=dev,chardev=chr "
"-device tpm-crb,tpmdev=dev "
"-incoming %s",
dst_tpm_addr->u.q_unix.path,
miguri);
*dst_qemu = qtest_init(dst_qemu_args);
free(src_qemu_args);
free(dst_qemu_args);
}
static void tpm_crb_swtpm_test(const void *data)
{
char *args = NULL;
QTestState *s;
SocketAddress *addr = NULL;
gboolean succ;
GPid swtpm_pid;
GError *error = NULL;
const TestState *ts = data;
succ = tpm_util_swtpm_start(ts->src_tpm_path, &swtpm_pid, &addr, &error);
/* succ may be false if swtpm is not available */
if (!succ) {
return;
}
args = g_strdup_printf(
"-chardev socket,id=chr,path=%s "
"-tpmdev emulator,id=dev,chardev=chr "
"-device tpm-crb,tpmdev=dev",
addr->u.q_unix.path);
s = qtest_start(args);
g_free(args);
tpm_util_startup(s, tpm_util_crb_transfer);
tpm_util_pcrextend(s, tpm_util_crb_transfer);
unsigned char tpm_pcrread_resp[] =
"\x80\x01\x00\x00\x00\x3e\x00\x00\x00\x00\x00\x00\x00\x16\x00\x00"
"\x00\x01\x00\x0b\x03\x00\x04\x00\x00\x00\x00\x01\x00\x20\xf6\x85"
"\x98\xe5\x86\x8d\xe6\x8b\x97\x29\x99\x60\xf2\x71\x7d\x17\x67\x89"
"\xa4\x2f\x9a\xae\xa8\xc7\xb7\xaa\x79\xa8\x62\x56\xc1\xde";
tpm_util_pcrread(s, tpm_util_crb_transfer, tpm_pcrread_resp,
sizeof(tpm_pcrread_resp));
qtest_end();
tpm_util_swtpm_kill(swtpm_pid);
if (addr) {
g_unlink(addr->u.q_unix.path);
qapi_free_SocketAddress(addr);
}
}
static void tpm_crb_swtpm_migration_test(const void *data)
{
const TestState *ts = data;
gboolean succ;
GPid src_tpm_pid, dst_tpm_pid;
SocketAddress *src_tpm_addr = NULL, *dst_tpm_addr = NULL;
GError *error = NULL;
QTestState *src_qemu, *dst_qemu;
succ = tpm_util_swtpm_start(ts->src_tpm_path, &src_tpm_pid,
&src_tpm_addr, &error);
/* succ may be false if swtpm is not available */
if (!succ) {
return;
}
succ = tpm_util_swtpm_start(ts->dst_tpm_path, &dst_tpm_pid,
&dst_tpm_addr, &error);
/* succ may be false if swtpm is not available */
if (!succ) {
goto err_src_tpm_kill;
}
migration_start_qemu(&src_qemu, &dst_qemu, src_tpm_addr, dst_tpm_addr,
ts->uri);
tpm_util_startup(src_qemu, tpm_util_crb_transfer);
tpm_util_pcrextend(src_qemu, tpm_util_crb_transfer);
unsigned char tpm_pcrread_resp[] =
"\x80\x01\x00\x00\x00\x3e\x00\x00\x00\x00\x00\x00\x00\x16\x00\x00"
"\x00\x01\x00\x0b\x03\x00\x04\x00\x00\x00\x00\x01\x00\x20\xf6\x85"
"\x98\xe5\x86\x8d\xe6\x8b\x97\x29\x99\x60\xf2\x71\x7d\x17\x67\x89"
"\xa4\x2f\x9a\xae\xa8\xc7\xb7\xaa\x79\xa8\x62\x56\xc1\xde";
tpm_util_pcrread(src_qemu, tpm_util_crb_transfer, tpm_pcrread_resp,
sizeof(tpm_pcrread_resp));
migrate(src_qemu, ts->uri);
wait_for_migration_complete(src_qemu);
tpm_util_pcrread(dst_qemu, tpm_util_crb_transfer, tpm_pcrread_resp,
sizeof(tpm_pcrread_resp));
qtest_quit(dst_qemu);
qtest_quit(src_qemu);
tpm_util_swtpm_kill(dst_tpm_pid);
if (dst_tpm_addr) {
g_unlink(dst_tpm_addr->u.q_unix.path);
qapi_free_SocketAddress(dst_tpm_addr);
}
err_src_tpm_kill:
tpm_util_swtpm_kill(src_tpm_pid);
if (src_tpm_addr) {
g_unlink(src_tpm_addr->u.q_unix.path);
qapi_free_SocketAddress(src_tpm_addr);
}
}
int main(int argc, char **argv)
{
int ret;
TestState ts = { 0 };
ts.src_tpm_path = g_dir_make_tmp("qemu-tpm-crb-swtpm-test.XXXXXX", NULL);
ts.dst_tpm_path = g_dir_make_tmp("qemu-tpm-crb-swtpm-test.XXXXXX", NULL);
ts.uri = g_strdup_printf("unix:%s/migsocket", ts.src_tpm_path);
module_call_init(MODULE_INIT_QOM);
g_test_init(&argc, &argv, NULL);
qtest_add_data_func("/tpm/crb-swtpm/test", &ts, tpm_crb_swtpm_test);
qtest_add_data_func("/tpm/crb-swtpm-migration/test", &ts,
tpm_crb_swtpm_migration_test);
ret = g_test_run();
g_rmdir(ts.dst_tpm_path);
g_free(ts.dst_tpm_path);
g_rmdir(ts.src_tpm_path);
g_free(ts.src_tpm_path);
g_free(ts.uri);
return ret;
}
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